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Step * 1 1 3 2 of Lemma minus-minus


1. x : ℤ
⊢ 0 = 0 ∈ ℤ
BY
{ EqCD }

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Latex:

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Latex:

1.  x  :  \mBbbZ{}
\mvdash{}  0  =  0


By

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Latex:
EqCD

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